Q. Virus was discovered by whom?
A) Stanley
B) Ivanowski
C) Herelle
D) Beijerinck
Explanation
The credit for the discovery of virus goes to D J Ivanowski (1892), a Russian botanist, who prepared an extract of tobacco mosaic diseased plant which when passed through bacteria filter, filtrate was still infectious. Wendell Stanley (1933) purified TMV in crystal form.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.